How do you play the A 7(b9)/D# chord?

To play the A 7(b9)/D# chord on piano, play the A 7(b9) chord (A, C#, E, G and A#) with D# as the lowest bass note. Place the D# note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What is a slash chord?

A slash chord (or compound chord) is written as Chord/Bass and specifies both a chord and a bass note. The note to the right of the slash is played as the lowest note. The A 7(b9)/D# chord means a A 7(b9) chord with D# in the bass.

A 7(b9)/D#

Q: What notes are in the A 7(b9)/D# chord?

The A 7(b9)/D# chord uses the 5 notes of the A 7(b9) chord — A (Perfect unison), C# (Major third), E (Perfect fifth), G (Minor seventh) and A# (Minor ninth) — with D# played as the bass note in the lowest register.

The A 7(b9) chord consists of the A (Perfect unison), C# (Major third), E (Perfect fifth), G (Minor seventh) and A# (Minor ninth) notes, with D# as the bass note.

Piano keyboard showing the notes for a A 7(b9)/D# chord

How to play the A 7(b9)/D# chord

Play D# as the lowest bass note in the left hand
Find A (Root) on the piano keyboard
Add C# (Major third) — 4 semitones above A
Add E (Perfect fifth) — 7 semitones above A
Add G (Minor seventh) — 10 semitones above A
Add A# (Minor ninth) — 13 semitones above A
Press all 6 notes simultaneously to sound the A 7(b9)/D# chord

Inversions with same root

D# Petrushka chord

Related chords with different root

A Petrushka chord